71700197 has 2 divisors, whose sum is σ = 71700198. Its totient is φ = 71700196.

The previous prime is 71700143. The next prime is 71700229. The reversal of 71700197 is 79100717.

It is a happy number.

It is an a-pointer prime, because the next prime (71700229) can be obtained adding 71700197 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52287361 + 19412836 = 7231^2 + 4406^2 .

It is an emirp because it is prime and its reverse (79100717) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71700197 - 2⁶ = 71700133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71700107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35850098 + 35850099.

It is an arithmetic number, because the mean of its divisors is an integer number (35850099).

Almost surely, 2^71700197 is an apocalyptic number.

It is an amenable number.

71700197 is a deficient number, since it is larger than the sum of its proper divisors (1).

71700197 is an equidigital number, since it uses as much as digits as its factorization.

71700197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087, while the sum is 32.

The square root of 71700197 is about 8467.5968845948. The cubic root of 71700197 is about 415.4385396641.

The spelling of 71700197 in words is "seventy-one million, seven hundred thousand, one hundred ninety-seven".